81909688

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1627}}^1$

素因数の和:1700

約数の個数: 64

約数和(自身を含む): 187545600

約数和(自身を除く): 105635912

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 31, 56, 58, 62, 116, 124, 203, 217, 232, 248, 406, 434, 812, 868, 899, 1624, 1627, 1736, 1798, 3254, 3596, 6293, 6508, 7192, 11389, 12586, 13016, 22778, 25172, 45556, 47183, 50344, 50437, 91112, 94366, 100874, 188732, 201748, 330281, 353059, 377464, 403496, 660562, 706118, 1321124, 1412236, 1462673, 2642248, 2824472, 2925346, 5850692, 10238711, 11701384, 20477422, 40954844, 81909688]

約数ペア:

[(1, 81909688), (2, 40954844), (4, 20477422), (7, 11701384), (8, 10238711), (14, 5850692), (28, 2925346), (29, 2824472), (31, 2642248), (56, 1462673), (58, 1412236), (62, 1321124), (116, 706118), (124, 660562), (203, 403496), (217, 377464), (232, 353059), (248, 330281), (406, 201748), (434, 188732), (812, 100874), (868, 94366), (899, 91112), (1624, 50437), (1627, 50344), (1736, 47183), (1798, 45556), (3254, 25172), (3596, 22778), (6293, 13016), (6508, 12586), (7192, 11389)]